Lunch bag



FIG. 1 is an isometric view of the lunch bag showing the front, top and one side of our invention;

FIG. 2 is a front elevation view of the lunch bag of our invention;

FIG. 3 is a rear elevation view of the lunch bag of our invention;

FIG. 4 is a right-side elevation view of the lunch bag of our invention;

FIG. 5 is a left-side elevation view of the lunch bag of our invention;

FIG. 6 is a bottom elevation view of the lunch bag of our invention; and,

FIG. 7 is a top elevation view of the lunch bag of our invention. 

The ornamental design for lunch bag, substantially as shown and described. 